Yeast Extract
molecular structure · PubChem
AKA: Yeast Ferment Extract, Saccharomyces Cerevisiae Extract
Plant-Derived
Skin Conditioner
Barrier Support
Ferment
Extract
Clean
Faex (EU),Yeast Extract (1),Yeast Extract (2),Yeast Extract (3),Yeast Extract (4),Yeast Extract (5)
CAS #
8013-01-2, 68876-77-7
Form
Liquid
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Protecting
Helps rebuild and strengthen your skin barrier — the invisible shield that keeps moisture in and irritants out. Essential after over-exfoliating or harsh weather.
Nourishes & Protects
Traditional Use
Developed in the 19th century from brewer's yeast byproducts. Historically used in nutritional contexts before adoption in cosmetics for its B vitamins, amino acids, and skin-conditioning properties.
Skin Types
●all-skin-types
Best For
Dullness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR